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Ground vibrations arising from excavation with blasting is one of the environmental problems in mining industry. The prediction of ground vibrations and the realization of controlled blasting based on this prediction have a great importance in order to minimize the environmental effects of blasting. The purpose of this study is to analyze the ground vibrations induced by blasting at Akyol Quarry which selected as a test site after the determination of the geomechanical properties of the rock mass with a computer s...

We propose a device which produces a high density cloud of spray that is consisted mostly of water micro droplets. The cloud automatically occurs when an electromagnetic pulse or/and shock wave from a close explosion matches the device. The ratio of absorbed energy of the dangerous shock wave depends on the density of the cloud and on its spreading speed as well as on the size and the mass of micro droplets. We have developed a mathematical model of physical processes in the Absorber. Numerical simulations show sa...

The paper presents the evaluation of mine disasters statistics with particular reference to aerological disasters which took place in Polish coal mines from 1945 to 2008. These disasters concern the events which the death of five or more miners working in the mine underground. They were caused by: breakout or outflow of carbon dioxide, methane explosion, tremors and roof falls, explosion of coal dust, fires, heat strokes, water outflows or breakdown of mine equipment. The special attention was paid to fire prevent...

Bauxite mineralizations of Seydisehir reside in western Taurides, in Konya region. Mesozoic limestones form the base of local stratigraphy. On top of these Eocene aged limestones and flysch units have precipitated. Allochthonous Paleozoic aged limestones of Hadim nappe units have moved on top of all these units. Formations of the region have undergone extensive tectonic activity. Bauxite mineralizations in the region are associated with Mesozoic limestones. They are located in karst spaces of limestones. These spa...

GIS enables spatial or nonspatial data to be transferred or stored into computers and various spatial, numerical, verbal analysis to be made by using this data prepared for this purpose. Although GIS has been used immersely in many fields, it hasn’t been widely used in mining. The aim of this study is to show the applicability of GIS in mining and its benefits for this field. With the help of the software developed in the scope of this study, it is aimed to plan the maps belonging to area of mining licence in th...

The project No 17005 (2008-2010) is a correlation Subotinac locality in the global wine and gave immense larger investigation of Subotinac (The Aleksinac basin) in respect of geological research. This paper is the result of research by the project of the Ministry of Science and Technological Development No 17005 R. Serbia. Papir presented corelation results of previous prospecting and detailed geological study of the basis for a new supplementary geological and chemical-technological research oil shale in the vici...

Basing on physical model of heat exchange between human body and environment, predicted thermal load under the work site parameters, specific for deep mines, was defined in the paper. The relationships included in EN ISO 7933 standard were used for this purpose. Level of heat accumulation, degree of skin moistness, maximum volume of sweat and body dehydration were evaluated. These parameters we used to define the safe time of work under difficult climate conditions. The calculations were made in respect of acclima...

DelPat program makes possible to design of blasting operations and cost estimation with ground vibration analysis arising from blasting. In this study, these applications of DelPat program were used for blasting works in excavation of Boyabat Dam and H.P.P. (Hydroelectric Power Plant) construction and the results were researched extensively. Blasting design was done and the results of planned blasting works and ground vibration measurements were analyzed by use of DelPat. At the end of some shots, 35 events were r...

Helth, Safety and Environmental management program is a dynamic program prepared to exploitation oil and gas offshore. This project program is prepared to accorded ISO standard and Romanian Standard and regulation. This program is following action: proactive programs for the health and safety, identify the source of pollution,-Plan to reuse and recycling the disposal materials,-Enhance the safe management of Naturally Occurring Radioactive Material in processing plants, - Prevent environmental pollution form the d...

Kosova is a country rich in coal, mainly lignite type and regarding to the reserves, it is ranked in the fifth place in the world. Estimated resources of lignite are average 12.7miliard tones, which are distributed in three main basins (Kosova, Dukagjin and Drenica). Approximately 50\% of entire country natural resources constitutes this type of coal. Thermo energetically installed power is 1478 MW , and lignite supply is from open pits, Mirash and Bardhosh with the use of lignite capacity of 16 million tones per ...

Erenkoy magnesite deposits reside in Eskisehir and Bilecik provinces of northwestern Turkey. Local geology consists of metamorphites of blueschist facies in the base; ophiolitic rocks with mainly serpentinites, peridotites; ophiolitic melanges with a varying range of lithology: cherts, calcschists, blueschist rocks, limestone and on top of all these there are neogene sedimentary units that are mainly consisted of sandstone and clay formations. Magnesite deposits in the area are associated with ultramafic rocks: se...

The main goal of a small scale stream sediments geochemical survey is to identify the promising areas for the further exploration in next steps of geochemical exploration. To achieve the target the thresholds value of each interested element within the geochemical sample must be specified at the first step. In this research it is attempted to use the raw geochemical data after pre-processing to delineate the anomalous area within the Khusf 1:50000 sheets which is located at 35 km west of Birjand at the south khora...

With contemporary development of computer techniques has been enabled execution of work by GPS satellite system in mining operations which GPS system serves for collection of data related with mining operations and explosive storage facilities. Today, these computers are part of standard equipments in the most part of mining operations. These systems offer a possibility of connection with tachograph, readers interested in the data of mining operations, measurement of coordinates by handheld GPS, transfer of data i...

A new practice has started to be implemented in Kosovo, in this south-eastern region of Europe, and it is 24-hour monitoring of vehicles and facilities with strategy for the development of mines in Kosovo with the help of GPS system. These vehicles and static facilities (the explosive storage) have a sophisticated system, which enables a precise monitoring of movements in and around them. Global Positioning System (GPS) currently presents the greatest achievements and application in the communication technology. B...

Most crude oils include paraffin that crystallize in low temperature to create cluster, precipitated in the form of sediments and making the free flow of oil more difficult. Such situations take place mainly in the autumn-winter season. Created sediments settle on the surfaces of mining equipment, pipes and reservoirs. This situation cause exploitation difficulties connected with increased flow resistance and in consequence decrease or lack of oil flow in pipelines. In order to protect of pipes and machinery again...

The great reserves and also convenient conditions for the use of coal represent very strong arguments for the justification of private capital investment in the energy sector of the Republic of Kosovo. The trend of living standard increase, development of industry and market demands within the South-East Europe pose the need for the construction of new power generation capacities. Therefore, the purpose of this paper is the introduction of possibilities for the coal supply of generation capacities up to 2000 MW in...

The main goal of core analysis is to reduce uncertainty in reservoir evaluation by providing data representative of the reservoir at in-situ conditions. Core analysis has to be integrated with field and production data to minimize reservoir uncertainties that cannot be addressed with other data sources such as well logging, well testing or seismic. These requirements define the coring objectives, core handling and core analysis scheme. These objectives cannot be achieved by coring a single well. Coring program is ...

In this project there have been considered management opportunities of the explosion material in ways of work safety, the setting and affects of this material in case of its activation without our approval. Site safety of the explosive material, its potential energy, its activation and its force depend on time reaction. Displayed are thermodynamic diagrams as well as the exchange of potential energy into the suppression force and underground storage facilities dimensioning of the explosive material as well as the ...

Ornamental stone sawability is important in predicting the prime cost of production and planning of the stone quarries and factories. Ornamental stone sawability with two standard methods, wire and circular sawing, is dependent on many parameters including; the stone that be sawn and machine characteristics and saw operating characteristic. The investigation of these parameters and the determination of the optimum working conditions for sawing machines in the stone industry is significant for establishing the most...

This paper is the result of research by the project of the Ministry of Science and Technological Development No 17005 R. Serbia. Some of the results of this collaboration are presented in this paper. The project No 17005 (2008-2010) was carried out research in the locality Subotinac (Aleksinac oil shales deposit). Some of the results of this collaboration are presented in this paper.

Conveyor belt slip on a driving drum belongs to dangerous accidents that may result in a fire and burning of the rubber belt cover and drum coating under not well described conditions. To prevent such situations temperature of the rubber coating is often monitored by optical methods. We argue that these optical measurements may not monitor the initial phase of belt slipping thoroughly enough and that they cannot predict the incoming danger. We propose to measure continuously the temperature gradient in the rubber ...

Several important characteristics such as suitable parent rocks, hydrodynamics system for carrying uranium complexes and pervious sedimentary layers play key role for transportation and deposition of soluble uranium. In this paper, we present the results of investigations of parent rocks and host rock of sedimentary uranium in Razgah region to examine intrusive of nepheline syenite in Razgah together with surrounding sedimentary units with regard of sedimentary uranium mineralization. Razgah nepheline syenite loca...

The case of Rosia Montana Mining Museum underlines the importance of promoting tourism in mining on a national basis, to ensure where possible those new employment opportunities are created in tourism in mining and that municipalities are aware of the possibilities for tourism in mining and that these are integrated into their tourism promotional activities. This paper emphasizes that our country’s tourism attractiveness lay in its diversity, including tourism in mining. It is important to perceive the opportuni...

In this study, the relationship between ground vibration, particle size distribution and energy distribution caused by blasting were investigated. For this purpose, ground vibrations were measured by using ground vibration monitors, Seismic Energies were calculated according to ground vibrations and particle size distribution were analyzed by using Split Desktop software. After these measurements and simulation, The relationship between PPV and SD which is the most widely used relationship in literature to predict...

Preliminary investigation of mineralizations of Thenardite associated with sulfate occurrences in \cCayırhan – Beypazarı, Ankara is presented. Local geology consists of Paleozoic metamorphite schists, Permo-triassic granitic rocks, Middle Jurassic – Upper Cretaceous limestones and marls in flysch facies, Paleocene aged land sedimentaries and marine Eocene units, Miocene to Pliocene aged lacustrine units, which sodium sulfates are associated to. Thenardite, Glauberite and Mirabilite minerals have been detecte...

Hydraulic impact hammers are one of the mechanical excavators that can be economically used in tunneling projects under favorable geologic conditions. However, there is relatively less published material in the literature directed to their performance prediction in terms of rock properties. In tunnel drivage projects, there is often the need for accurate means of performance prediction of related mechanical excavators. A poor prediction of machine performance can lead to very costly contractual claims. In this stu...

The completion string is the most important component in petroleum production system and should be designed and installed precisely, and maintained properly. If the well suffers scale production problem the importance is multiplied. In this study the four major completion techniques commonly used for non-organic depositions is introduced. The subject has been case studied for one of southern Iranian oil wells with inorganic material production problem. The simulations were run using the Prosper software, and were ...

Determining the optimal location of wells with the aid of an automated search method can significantly increase a project’s net present value as modeled in a reservoir simulator. This work addresses the efficient solution of this problem by using advanced techniques for coupling two important components of autonomic optimization: Dynamic model using Eclipse simulator software (E100), an optimization technique based on the genetic algorithm (GA). Profits and costs during the time period of the project were taken ...

Discontinuities such as beddings, faults and joint sets usually have important role in rock slope stability analysis. Indeed, they can change a rock mass to a blocky system. First of all, in the application of different slope stability analysis methods, the blocks must be absolutely determined in geometrical shape and defined in form of polyhedron. A 3D geometrical model of jointed rock mass, including a set of simulated geotechnical blocks, can be generated considering constraints of the model boundaries and geom...

Reservoir fracturing or fissuring is a natural phenomenon and a major factor in many Oil engineering studies. The factors that cause the Reservoir to fracture were analyzed in Tabnak Anticline, in Fars province of Iran using the borehole images information (EMI). A nonlinear simulation and assessment model of reservoir fracturing was established using the artificial neural network (ANN) technology to simulate the structure and function of the neural network (NN) of the human brain with engineering technology. The ...

There are some limitations and constraints in application of algorithms developed to optimize open pit limits. Therefore, it is normal to develop new algorithms to decrease existing limitations and increase their capabilities. In this paper, the key group concept which mainly use for stability slope analysis is used to develop a new algorithm named “KG-PLO” to optimize open pit limits. The KG-PLO is implemented on an especial type of the economic block model of the mining area. The algorithm can present the tr...

The environmental problems arising from ground vibration has been faced and discussed frequently in various industries such as quarry, mining, civil works, shaft, tunneling, pipe line and dam construction etc. where the blasting operations are unavoidable. In bench blast design, not only the technical and economical aspects, such as block size, uniformity and cost, but also the elimination of environmental problems resulting from ground vibration and air blast should be taken into consideration. One of the fundame...

Rising operating costs of truck haulage in deep open-pit mines, have forced them to apply new methods. The most common method is using an in-pit crusher and conveying the ore and/or waste out of the pit .This method has been successfully implemented in several large open-pit mines. In deep mines it may be necessary to move the crusher and reinstall it in new location(s). This paper offers an approach to determine these location(s). The approach is simply to propose various alternatives and calculate related costs ...

Since a very long time ago, men have paid a very especial attention to underground spaces. Stone Age men used to take them as shelters and the contemporary human has applied them in several ways. Caverns are large underground spaces which are excavated in hard rock. Nowadays, engineers’ attention has been drawn to the application of caverns in order to expand the urban areas due to the civil developments and the lack of enough spaces on the surface. On the other hand, caverns have turned to become multi-purpose ...

The purpose of this study has been assessment of capability of Artificial Neural Networks in Gas Lift Operations optimization, which is in use for improved oil recovery from oil wells. This in detail is in fact estimation of the two most important parameters of the process, i.e. optimal injection depth and optimal gas injection rate. For gas lift, gas is injected continuously or intermittently at selected location(s), resulting in a reduction in the natural flowing gradient of the reservoir fluid, and thus reducin...

Mineral Resource management (MRM) is defined as a holistic view on mining activities at firm levels to optimise the use of these non-renewable resources. In this paper, after reviewing of related terms about MRM such as sustainable development, we combined MRM objectives at firm with government responsibilities on mine sector management, and a new applicable cause and effect framework was proposed. This framework which is based on sustainable development satisfies both of firm objectives and the governmental respo...

In continuous gas lift, gas may be injected continuously or intermittently, depending on the producing characteristics of the well and the arrangement of the gas-lift equipment. Being somehow an ancient tool with an age of over a century, gas lift is though still a challenging problem when overall optimization is the concern. When the injection gas is of a limited supply the problem is finding the best gas allocation scheme. However there are increasingly emerging cases in certain geographic localities where the g...

In this study, blast originated vibrations were monitored around the limestone quarry owned by Konya Cement Factory near Konya city. Since the city limits have been widened and the land around the quarry opened to residential area. The work presented here, concentrates the vibration measurements taken from two different locations for each rock blast by Instantel-Minimate plus equipments. The data obtained were then analyzed by means of Blastware 8.0 software and results were presented here in this paper. The vibra...

The roof of the tunnel and sidewalls are especially influenced by the tunnels shape and dimension. Rock engineering mostly concentrates the reasons of these disturbances to decide if they are stress induced or discontinuity governing deformations. In this study, it has been concentrated on two shallow tunnels which are 35-90 meters below the ground surface. They were opened in limestone rock mass containing lamination and cavities as well. Electrical resistivity measurements were used to determine the weakness zon...

Electrical resistivity measurements have been used in engineering for many purposes. In this study, blasting effects on the back of blasted holes at a quarry bench have been put under evaluation. Earth resistivity of bench rock, limestone, was measured before and after blasting by electrical resistivity equipment with the same electrode positions. The resultant resistivity graphs demonstrate the blasting performed in this study influence slightly the rock resistivity of the rock mass situated 4 m from the blasted ...

Pillars are key structural columns in underground mining. They are usually made of in situ intact ores and do not have additional reinforcements. Their main function is temporary or permanent support of ore ceiling of rooms during excavation and mining. Coal pillar strength is usually estimated according to empirical formulae obtained from field observations. Todays, numerical models have found increasing use in pillar design. The FLAC3D Software based Mohr-Coulomb Strain Softening (MCSS) failure criterion was use...

The North-Western Bohemia region takes a unique position in the history of mining in the Czech Republic. Several ore districts are situated here, the welfare of which influenced the development of the Czech state in some periods. Some precious stones mining was also significant. Today the North-Bohemian Basin area is known for its largest Czech brown coal deposit. The history of mining has been mainly linked to three large ore districts in the North- Western Bohemia region. Jachymov is the most important one. It u...

To many countries heavy metal pollution is a problem related with areas of intensive mining activities and industry. Extensive exploitation of metallic minerals in the territory of Kosovo from antiquity until now days effected on environmental and river flows plane pollution. During September/November 2006 in Kizhnica/Artana was done stream sediment sampling (304 samples) main attention on precious metals (Au, Ag) and base metals (Zn, Pb, Cu). The stream sediment survey area is situated ESE of Prishtina with an ex...

Mining engineering education includes four years of lecturing and three periods of summer practices. The practices must be performed at three different mining sides, including underground mines, open pit mines and ore dressing plants. Students are officially advised during decision time of company selection for their summer practice to get better educational results. In order to understand the mining engineering role by the students, the practice should be performed in mines directed and organized by mining engine...

Some rock types have been more favorable for dimensional building stone since early ages of civilization. These rocks in general are stable and their properties have been long lasting for the selected locations. Due to availability they have been used in human history not only for building stone alone, but they have also been used for other engineering and artistic projects in cities. In this study; mechanical properties of 5 types of ignimbrite rocks and one basalt rock were tested for their usability for dimensi...

Ventilation networks in underground mines may be affected by items such as: locating of objects in air path or destruction of support systems which would result in pressure loss and distortion of air flow. By considering the necessity of keeping the network performances at appropriate level in such conditions, in this study, definition of ventilation network evaluation has been proposed which indicates the network reliability in an uncertain situation. Economic and safety concerns in mines involve this fact that t...

Drilling for mineral resources can be one of the most expensive processes in the exploration and production. Hence, drilling industry has been striving since its inception for developing drilling techniques which allow for fast drilling rates but ensuring the safety of the well and of the workers. Parameters affecting the drilling process can be cast in two major categories, rig and bit related parameters and formation parameters. The first category includes weight on bit, torque, rotational speed, and hydraulic p...

Currently, continuous gas lift has a significant contribution for the purpose of petroleum production from those wells that have low production rates or those that have ceased their production. Therefore, production engineers are constantly finding the ways for optimizing this type of system. Superior designs are achieved when important parameters are optimized prior to system implementation. Optimization of gas injection into the annulus and also the tubing size are of the most important parameters. The functiona...

Geographic information systems (GIS) constitute a new powerful technology that can address many of the information needs of decision makers in state and local governments. Therefore this paper represents an attempt to use this technique to optimize Ghorabi iron ore grade for uses in blast furnace as the first step in steel industry in Egypt.

Bubble-point pressure, gas solubility and viscosity of oils are of the most important parameters in use for petroleum and chemical engineers. In this study a simple-to-use; straight-forward mathematical model is correlated on a set of 94 crude oil data. The correlation is achieved based on an exponential regression. The results are compared with variety of conventional empirical correlations and have also been evaluated by comparison with 12 laboratory data other than those used for the regression. It has been con...